John wilson



(No Model.)

J. WILSON.

TELEGRAPH WIRE AND INSULATOR FASTENING. N0. 349,022. Patented Sept. 14, 1886.

Fi .7. SE 2.

1 b 1 1L5 i \\Q WITNESSES.

\NVENTOR.

UNITED STATES PATENT OFFICE.

JOHN \VILSON, OF NEW YORK, N. Y.

TELEGRAPH-WIRE AND INSULATOR FASTENING SPECIFICATION forming part of Letters Patent No. 349,022, dated September 14, 1886,

Serial No. 186,504. (No model.)

To all whom, it may concern;

Be itknown that 1, JOHN YVrLsoN, a citizen of the United States, residing at New York city, in the county and State of New York, have invented a new and useful Improvement in Telegraph-Vile and Insulator Fastenings, of which the following is a specification.

My invention consists ot'improved fastening devices designed for securing the telegraph wires to the insulators more simply and effectually than as {by the present methods of fast euing,as hereinafter fully described, reference being made to the accompanying drawings, in which Figures 1 and 2 are side elevations of the insulator and sections of the wire, showing my improved fastening; and Figs. 3 and 4: are plan views with some parts of theinsulators broken out to show the fastening device more clearly.

I make the insulators a with a transverse notch or groove, b, in the upper end, which is just wide enough above the bottom to admit the wire 0, and sulliciently wide-r in the bottom portion, (Z, to allow the fastener, which may consist of a wire, 6, or a split tube, f, of rubber or other approved material, to be coiled around the wire in the enlargement, so as to chock the wire against escape by contact with the angular projections y of the walls of the groove at the junction ol the wider bottom portion with ihe narrower upper portion of the groove.

The wire-fastener 6 may be :coiled several times around the telegraph-wire spirally, and be secured against escaping from the groove by shifting along thetelegraph by having its ends h projected, so as to form stops against the sides of the insulators, and the rubber tube may have wire stops 5 incorporated with it to hook or project similarly beyond the walls of' the groove.

To apply the fasteners, they may be coiled on the telegraplrwire at one side of the insu lator, and then shoved along into the groove before the stops h or i of one end are bent out laterally.

The insulators may be made of glass, porce lain, or other approved material,and they may have the ordinary screw-section, j, for screwing into the supporting-arm or the peg-socket. or both.

Vhat I claim, and desire to secure by Letters Patent, is

1. The combinatiou,with the insulator having the transverse groove b,angular projections ofthe side walls, and the wider bottom portion, 62, of said groove, and with the telegraph wire laid in said groove, of a fastener coiled around the wire in the groove and forming checks against said projections, substantially as described.

2. The combination, with the insulatorhaving the transverse groove 1), angular projections of the side walls, and the wider bottom portion of said gr0ove,aud with the telegraph wire laid in said groove, of a fastener coiled around the wire in the groove and forming ehocks against said projections, said fastener having stops at the ends against the sides of the insulator, substantially as described.

In witness whereof I, have hereunto signed my name in the presence of two subscribing witnesses.

JOHN WILSON,

Witnesses:

' W. J, MORGAN,

S. H. BIORGAN. 

